Attoenets



(No Model.) 2 Sheets Sheet 1.

1 G. H. GAUGHREAN.

PUMP.` No. 385,842. Patented July 10, 188e.

ATTORNEYS.

N PETERS. Phmo-mmgnpmr, washinmnn. D, C.

WITNPSSPS:

,/). iS Tue/M (No Model.) 2 Sheets-Sheet 2.

' G. H. CAUGHREAN.

PUMP.

N0. 385,842. P tented July 10, 1888.

WITNESSES:

@www

LTVENTOR:

,@m BY www ATTORNEYS.

Unirse rares GEORGE II. OAUGIIREAN, OF NEVADA, MISSOURI, ASSIGNOR 'IO IIIMSELF AND VILLIAM II. ROBINSON, OF SAME PLACE.

PUMP.

SPECIFICATION farming part of Letters Patent No. 385,842, dated July l0, 1888.

(No model.)

To all whom, it may concern.-

Beit known that LGEoRGn H. CAUGHREAN, of Nevada, in the county of Vernon and State of Missouri,have invented a new and Improved Pump, of which the following is aspecitication, reference being had to the annexed drawings, forming a part thereof, in which- Figure l is a side elevation, partly in section, of a single-acting pump constructed according to my improvement. Fig. 2 is aside elevation, partly in section, of a double-acting pump. Fig. 3 is a horizontal section of the pump-plunger; and Fig. 4 is a vertical section of a portion of the single-acting pump, illustrating the position of the valves when the piston and riser are descending.

Similar letters of reference indicate corresponding parts in all the views.

The object of my invention is to provide a pump especially designed for deep wells, but adapted to any kind of pumping.

My improved pump belongs to the general class known as submergeth and in that particular or sub-class in which a weight or equivalent is applied to the pump-lever-to counterbalance the hollow piston-rod and the column of water contained therein. I have adapted a novel construction and combination of parts, whereby a new and important advantage is attained.

The pump-barrel A is entirely open at the bottom instead of being provided with a footvalve, like some other pumps of this general class. The piston D is provided with the snction-valve a, adapted to close the central opening, b, of the piston. Thepiston bis provided with a spider, c, in which is inserted a pipe, O,which extends through a stalling-box, D, in the pump-head d. To the pipe C is attached a vertical check-valve, E, in which is inserted the riser F, which extends upward above the well-covering G, and is provided with an airchamber, c, and discharge-spout f. Upon the top of the air-chamber e is formed an eye, g, for receiving a cord, h, which extends over a sheave, fi, journaled in posts j. To the extremity of the rod h is attached a weight, k, which counterbalanees the riser F and the parts connected therewith; also, the water contained by the riser.

To the riser F, above the well-covering, is

attached a collar, l, which is connected by a link, Z, with the pump-handle ILthesaid pumphandle being lulcrnmcd in the standard I, secured to the pump-base J. In the top of the cylinder A are inserted rods m, which are connected with a flange, a, in which is inserted a pipe, K, also screwed into the hase J. The pipe K iucloses the riser F and supports the pump-barrel A.

In lieti of employing the counterbalanceweight la, I may use a spring, o,whieh is pivotally connected with the handle H,and attached by its lower end to the pump-base J.

In Fig. 2-I have shown two pumps of substantiall y the same construction as that already described, and so far as the parts are alike they will be described by the same letters of reference. The heads d of the two pump-cylinders are formed in a single casting, into which, between the pump-cylinders A, is screwed a rod, K', which extends tothe well-covering G, and is provided with a collar, a', resting in a cavily in the well-covering, and secured in place by the iianged collar J. In the upper end of the rod K,whieh extends above the well-covering, is pivoted a pumphandle, H',whieh is connected on opposite sides of its pivot with the risers F by means of the collars Z, einbracing the risers, and the links l', connecting the collars with the handle H. In the present case the upper ends of the risers are curved over toward each other, forming dischargespoutsf, which are both capable of discharging into the saine vessel.

rlhe operation of my improved pump, as shown in Figs. l and 2, is as follows: The barrel A being immersed in the water, the handle II is raised, thereby forcing down the riser F, carrying down the piston B, thus causing the Valve a to open, as shown in Fig. 2, and allowing the water to flow into the space in the barrel above the said piston. Upon reversing the movement of the handle the piston Bis raised, (see Fig. 1,) and the water in the closed space between the piston and head d of the barrel or cylinder is forced to enter the pipe C, flow past the check-valve E, up through the riser F,and out at the spout f. The check-valve E retains the water forced into the riser, and when the piston B is again pushed down a new supply of water is taken in the cylinder A above the IOO piston B in the manner before described, and upon again raising the piston by means of the handle H the Water is again forced up the riser, and after the riser is iilled by continued pumping the water is discharged through the spout f. When the riser is full, the riser,with its contents, will be approximately counterbalanced by the Weightlc or the spring o, so that the only power required to raise the water will be that expended in overcoming the friction ofthe parts of the pump and the water, and the hydraulic pressure of the latter, (which necessarily varies with the depth from which it is raised.) In this respect my pump has an important advantage over those in which the barrel or cylinder is not entirely open at the bottom but provided with a foot-valve, since the latter supports nearly the whole weight'of the column of water in the hollow piston-rod when the piston is descending, so that the weight is not counterbalaneed, and the operator must therefore apply a force adequate to lift it in order to carry the piston down. In

my pump the counter-balance is effective during the descent as well as the ascent of the pis ton, which is rendered practicable by the absence of a foot-valve and leaving the barrel open.

In a submerged pump, the combination of t,

the following elements: the barrel A,havingits bottom open, as shown, in contradistinction to pump-barrels which are provided with a footvalve, the piston B, having the valve a, and construeted'with open spaces above said valve, which permit water to pass into the space between the piston and head of the cylinder', the hollow piston-rod Gand riser F, the checkvalve E, arranged in the latter, and acounter balance connected with said riser, as shown and described.

GEO. H. CAUGHREAN.

Witnesses:

C. HURD, W. T. Low. 

